Tyco AquaMist AM4 User manual

General
Description
The Tyco®Type AM4 AquaMist Noz-
zles are stainless steel, open (non-
automatic) nozzles intended for use
with total compartment, engineered,
water mist deluge systems. They are
intermediate pressure nozzles which
utilize a single fluid jet impinging on a
diffuser to produce a spray having a
range of water droplet sizes suitable
for the extinguishment of Class B fires,
as well as incidental Class A fires.
Itisrecommendedthattheenduserbe
consulted with respect tothe suitability
of the materials of construction and
finish for any given corrosive environ-
ment. The effects of ambient tempera-
ture, concentration of chemicals, and
gas/chemical velocity, should be con-
sidered, at a minimum, along with the
corrosive nature to which the nozzles
may be exposed.
NOTICE
The Type AM4 AquaMist Nozzles de-
scribed herein must be installed and
maintained in compliance with this
document and with the applicable
standards of the National Fire Protec-
tion Association, in addition to the
standards ofany other authorities hav-
ing jurisdiction. Failure to do so may
impair the performance of these de-
vices.
Thedesignofindividualwatermistsys-
tems can vary considerably, depend-
ingonthecharacteristics andnatureof
the hazard and the basic purpose of
the watermist system. Because of
these variations, the design of water
watermist systems for fire protection
must only be performed by experi-
enced designers who thoroughly un-
derstand the limitations as well as ca-
pabilities of such systems.
The owner is responsible for maintain-
ing their fire protection system and de-
vices in proper operating condition.
The installing contractor or sprinkler
manufacturer should be contacted
with any questions.
Technical
Data
Discharge Coefficient
K=0.24GPM/ft
1/2
(K = 3,5 LPM/bar1/2)
Thread Connection
1/2 inch NPT
Finish
Natural stainless steel
Physical Characteristics
Frame . . . . . . . . Stainless Steel
Strainer........StainlessSteel
Orifice Insert . . . . . Stainless Steel
Diffuser . . . . . . . . Stainless Steel
DustCap...........Buna-N
Thesmallestwaterway(orifice)diame-
ter of the Orifice Insert is nominally
0.091 inches (2,31 mm), and the di-
ameter of the Inlet Strainer perfora-
tions are nominally 0.060 inches (1,52
mm).
Patent
U.S.A. No. 5,392,993.
Design
Criteria
Guidance for the design of a watermist
system that utilizes the Tyco®Type
AM4 AquaMist Nozzles is to be ob-
tained from the Technical Data Sheet
TFP2234.
Page 1 of 4 TFP2204
APRIL, 2009
AquaMist
®
Nozzles
Type AM4
Non-Automatic (Open)
Technical Services: Tel: [phone] / Fax: [phone]
IMPORTANT
Always refer to Technical Data
Sheet TFP700 for the “INSTALLER
WARNING” that provides cautions
with respect to handling and instal-
lation of sprinkler systems and com-
ponents. Improper handling and in-
stallation can permanently damage
a sprinkler system or its compo-
nents and cause the nozzle to fail to
operate in a fire situation or cause it
to operate prematurely.

Installation
NOTICE
A 1/2 inch NPT nozzle joint should be
obtained with a minimum to maximum
torque of 7 to 14 ft.lbs. (9,5 to 19,0
Nm). Higher levels of torque may dis-
tort the nozzle inlet and cause leakage
or impairment of the nozzle.
The Type AM4 AquaMist Nozzles
must be installed in accordance with
the following instructions.
Step 1. The AM4 is to be installed in
the pendent position as shown in Fig-
ure 1.
Step 2. With pipe thread sealant ap-
plied to the pipe threads, hand tighten
the nozzle into the nozzle fitting.
Step 3. Tighten the nozzle into the
nozzle fitting using only the W-Type 6
Wrench(Ref.Figure2).Withreference
toFigure1,theW-Type6Wrenchisto
be applied to the wrenching area.
Care and
Maintenance
The Tyco®Type AM4 AquaMist Noz-
zles must be maintained and serviced
in accordance with the following in-
structions:
NOTICE
Before closing a fire protection system
main control valve for maintenance
work on the fire protection system that
itcontrols,permissiontoshutdownthe
affectedfireprotectionsystemmustbe
obtained from the proper authorities
and all personnel who may be affected
by this action must be notified.
Type AM4 AquaMist Nozzles must
never be painted, plated, coated or
altered in any way after leaving the
factory; otherwise, the spray perform-
ance may be impaired.
Care must be exercised to avoid dam-
agetothenozzles-before,during,and
after installation. Nozzles damaged by
dropping, striking, wrench twist/slip-
page, or the like, must be replaced.
Frequent visual inspections are rec-
ommendedtobeinitiallyperformedfor
nozzles installed in potentially corro-
sive atmospheres to verify theintegrity
of the materials of construction and
finish as they may be affected by the
corrosive conditions present for a
given installation. Thereafter, annual
inspections per NFPA 25 are required.
The owner is responsible for the in-
spection, testing, and maintenance of
their fire protection system and de-
vices in compliance with this docu-
ment, as well as with the applicable
standards of the National Fire Protec-
tion Association (e.g., NFPA 25), in
addition to the standards of any other
authorities having jurisdiction. The in-
stalling contractor or sprinkler manu-
facturer should be contacted relative
to any questions.
Water spray fixed systems should be
inspected, tested, and maintained by a
qualified Inspection Service in accord-
ance with local requirements and/or
national codes.
Page2of4 TFP2204
FIGURE 1
TYPE AM4 AQUAMIST NOZZLE
NOMINAL DIMENSIONS
-
2 Orifice Insert
Deflector
Frame
-
4
3-
Components:
Strainer1-
1-3/16"
(30,2 mm)
(50,8 mm)
2" (34,9 mm)
1-3/8"
(11,1 mm)
MAKE-IN
NOMINAL
(31,0 mm)
1.22"
7/16"
1/2" NPT
WRENCH
FLATS
FACE OF
NOZZLE
FITTING
54
2
3
1
Optional
Dust Cap
5-
Assembly
SHAPE
DEFLECTOR
FIGURE 2
TYPE W6 WRENCH
WRENCH RECESS
(USE ONLY
END "A")

Limited
Warranty
Products manufactured by Tyco Fire
Suppression & Building Products
(TFSBP) are warranted solely to the
original Buyer for ten (10) years
against defects in material and work-
manship when paid for and properly
installed and maintained under normal
use and service. This warranty will ex-
pire ten (10) years from date of ship-
ment by TFSBP. No warranty is given
for products or components manufac-
tured by companies not affiliated by
ownership with TFSBP or for products
and components which have been
subject to misuse, improper installa-
tion,corrosion, or whichhave notbeen
installed, maintained, modified or re-
paired in accordance with applicable
Standards of the National Fire Protec-
tion Association, and/or the standards
of any other Authorities Having Juris-
diction. Materials found by TFSBP to
be defective shall be eitherrepaired or
replaced, at TFSBP’s sole option.
TFSBP neither assumes, nor author-
izes any person to assume for it, any
other obligation in connection with the
sale of products or parts of products.
TFSBP shall not be responsible for
sprinkler system design errors or inac-
curate or incomplete information sup-
plied by Buyer or Buyer’s repre-
sentatives.
In no event shall TFSBP be liable, in
contract, tort, strict liability or under
any other legal theory, for incidental,
indirect,specialorconsequentialdam-
ages, including but not limited to labor
charges, regardless of whether
TFSBP was informed about the possi-
bility of such damages,andin noevent
shall TFSBP’s liability exceed an
amount equal to the sales price.
Theforegoingwarrantyismadeinlieu
of any and all other warranties, ex-
press or implied, including warranties
ofmerchantability andfitnessforapar-
ticular purpose.
This limited warranty sets forth the ex-
clusive remedy for claims based on
failure of or defect in products, materi-
als or components, whether the claim
is made in contract, tort, strict liability
or any other legal theory.
This warranty will apply to the full ex-
tent permitted by law. The invalidity, in
whole or part, of any portion of this
warranty will not affect the remainder.
Ordering
Procedure
Whenplacinganorder,indicatethefull
product name and P/N.
Contact your local distributor for avail-
ability.
AM4 AquaMist Nozzles:
Specify: Stainless Steel Type AM4
AquaMist Nozzle, PSN 49-204-0-001.
AM4 AquaMist Nozzles
with Dust Caps:
Specify: Stainless Steel Type AM4
AquaMist Nozzle with Dust Cap,
PSN 49-204-0-011.
Wrench:
Specify: Type W6 Wrench,
P/N 56-000-6-387.
TFP2204 Page 3 of 4

Page4of4 TFP2204
©2009 TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, 451 North Cannon Avenue, Lansdale, Pennsylvania 19446